Energy of Motion
What is Kinetic energy
Explain the transformation that takes place when you rub your hands together. (3 steps)
What is chemical (stored in food) to Kinetic (movement of the hands) to thermal (heat produced from friction)
What is Newton's Second law
Force = Mass x Acceleration
The type of Energy that depends on mass and height
What is Gravitational Potential Energy
Explain the transformation that takes place when you turn on a crank flashlight. From the battery to the light. 4 steps minimum
What is Kinetic motion of the Crank, to Mechanical gears in the flashlight to Chemical (of the battery) to electrical (flow of electrons) to radiant (of the light) to thermal ( the heat produced by the light)
How can you calculate speed?
Distance traveled / time used.
Type of energy that could use chains, cogs, or springs
What is Mechanical Energy
Wind turbines convert _________________ energy into electrical energy.
What is mechanical
Calculate the mass of an object that has 30 Newtons of force and acceleration of 2 m/s2.
F = MA --> M = F/A --> 15 kg
Give an example of electrical energy being changed to radiant energy.
What is light
Explain the transformation of energy that occurs in a coal burning power plant. List the type of enrgy and where it comes from. 4 steps
What is Chemical (coal) to thermal (heat released from breaking the bonds of coal to boil water)to mechanical ( the steam makes) to mechanical (turbine move) to electrical (the turbine is connected to a generator that make a flow of electrons)
What is the speed of a rocket that has traveled 200 kilometers in 3 seconds?
67 km/s.
This is a type of energy that travels in waves and can travel through empty space.
What is electromagnetic or light energy
Explain the transformation that takes place for you to walk. Begin with the sun. (6 steps)
What is Solar energy (from the sun) to chemical energy (in a plant) to chemical energy (your food) to kinetic energy your walking.
When you drop a tennis ball that weights .2kg and has a force from gravity of 30 Newtons, what is its acceleration?
a = F/M--> 30/0.2= 150 m/s2
Name 6 types of energy
Light, Heat, Chemical, Nuclear, electrical, mechanical, and electromagnetic.